Mine car bearing



June 13, 1933. p MILLER 1,913,500

. MINE CAR BEARING Filed Aug. 12, 1931 MINI-ll" gwumtoz Job N FM/L LER,

it 29 latter;

" ventio'n to rovide a bearing QOIlStfllCtlOIllComprising a recelvlng housing Patented June 13, 1933 N TE -S T S PA me it it i: it JOHliT lmLLEhoFDUitYifllgr ilNNsgLvAm it? a was invention relat 1 bearing JOKES andnlore particularly to the bearingboizes of mineicars, and it has for its object thepro vi i n f' an mpr v p bo a a tru tu e h,

point oflubrication.

Afgreat deal of troublewand expense is causedby the bearing boxes at present inuse in mine cars; Most oi'i'those atpresentemployed comprise a pair of mere semicircular bearing halves held in placewithcotter p ns.

fThese frequently become loose and drop out perrnittingthe wheels to become disengaged frointhe mine cars, frequently derailing the This derailment often takes place in portions of the flnine where the head room is not sufficient for the carto be lifted to replace the wheels with'the result that the car has to "be dragged toa point where it Ganbe lifted. 1 1 11; is therefore "a primary object of the inof very rugged and a palr of bearing halves, the latter being interlocked with each other and 'withthe housingsuch manner as to absolutely prevent any disengagement of the bearing halves from i the housi g or; any disengagement of the axlefrorn the bearinghalvs.

In the accompanying drawing with the invention. i a r a 5 1 Fig. 2 is a front elevation of: the complete bearings a Fig; 3x'lisfla front elevation ofuthe housing Mwith the; bearing halves removed :and a 1 Fig. lzisia reahelevation. a a a :wLikewnumerals designate corresponding lpartsxin all thegfiguresiof'the drawing. a

while economical, will be Figure 1:is a vertical longltudlnalsectionalp view of a bearing jconstructedin accordance lbwer bearing halves reservoir; It is preferably providedlwith The a bottom of the box like portionlies belowthe i y barbs: 1711toho1d the waste in place;

leyel of Lthe'bearing portion 10a with the re suit that}; stop" shoulder 10f'is formed upon the lower bearinghalf and this stop shoulder isadapted to engagebehindan upwardly extending transverse lip 10g of the housingll.

Itwill consequently beobserved that this a docks the lower bearing half with respect to the housing. In addition, the rear wall bzE the housing 11 isthickened through its Upper portion toforrn ah overhanging. ledge 1*11abeneath which therear wall lOe ofthe "lower bearing xhalfengages. In putting this lower [bearing halfin place, the rear wall 100 is firstengagedl beneath the ledge 11a and 30 i then the stop 10] is moved downwardly to lie behind lip; 10g. It is to be noted that the ltop Lofcthe rear wall lOedies at a slightly lower level (see Fig; '1) than" the tops'of the side walllOcandthis permits the rearends l of these side mus to engage in notches 116 formed atthe terrninal ofithe overhangin ledge 11w. a p

- the upperbearinghalf 9 conforms in ouryature to the axle v5 upon itslunder faceand whenslipped into place its rear end bears against the rear wall of the housing and a lip Qaof said upperbearing half lies against the recessed forward edgelQaof the top 12 of the housing andbeneatharail 1160f said housing, the sill13 being cut for the reoeption of said rail;

It is" parent that the presence of the uppier-bearing half 9 locks the lowerubearing 10 against any such upward movement as 0 would tend to free the stop shoulder from the lip 10g and since the bearing half 9 can not move outwardly because of the presence of the wheel hub 6 it follows that when the parts are once assembled it will be absolutely impossible for them to become accidentally "disengaged. An oil 1 receiving opening 18 is formed through the upper thickened portion of the rear wall of the housing 11 and its inner end overlies 'the'box" 10b in such manner that oil introduced into said opening '18 will be delivered into the oil receiving box of the lower bearing half.

The oil which travels outwardlyalong the semi-circular bearing portion 100 ofthe lower bearing half is deliveredinto the recess 15 fromwhich it is conducted into an oil'reservoir 6a through ports 66 whereby efficient i lubrication of both axle and wheel is assured.

It will be apparent that the wheel may turn upon the axle or that the axle may turn in construction set forth, but that it includes within its purview whatever changes fairly come within either the terms or the spirit of the appended claims.

Having'described my invention, what I claim is:

1. The combination with 'a housing having a rectangular box like interior, of a pair of bearing halves adapted to fit snugly therein and provided with semi-circular inner faces for the reception of an axle, the lowermost of said bearing halves comprising a bearing portion and an inner box like portion for the reception of. a lubricant, means carried by said lower half for preventing outward movement of said lower half with respect to the housing, and interlocking means between the housing and the lower bearing half forpreventing upward movement of the outer end ing a rear wall that is thickened at of said lower bearing half with respect to the housing, the lower edges of the upper hearing half engaging the upper edges of the lower bearing half whereby the presence of the upper bearing half prevents upward movement of the lower bearing half.

2. The combination with a housing comprising a rectangular box like interior havitsupper portion to provide an overhanging ledge, an

. oil conduit formed through said overhanging ledge, upper and lower bearing halves, the

lower bearing half being provided with a bearing portion projecting outwardly beyond .a bearing movement of said half out bearing halves,

the face of the housing and being extended in to the housing to form a box like lubricant receiving element, the rear wall of vwhich engages beneath said overhanging ledge, an axle received within said bearing halves, and a wheel upon said axle having a recess within which the projecting bearing portion of the lower bearing half is received.

3. The combination with a housing comrisin a rectan ular box like interior havmg a rear wall that is thickened at its upper portion to provide an overhanging ledge, an oil conduit formed throughsaid overhanging ledge, upper and lower bearing halves, the lower bearing half being provided with a bearing-portion projecting outwardly beyond the face of the housing and being extended into the housing to form a box like lubricant receiving element, therear wall of which engages beneath said overhanging ledge, an axle received within said bearing halves, a wheel upon said axle having afrecess within which the projecting bearing portion .of the lower bearing half is recessed,-the outer faces of the upper bearing half lying flush with the outer face of the housing and being of such shape as to directly engageand lock the lower bearing half against vertical movement.

4. The combination with a housing comprising a rectangular box like interior, of a pair ofbearinghalves adapted to fit snugly therein and provided with semi-circular inner faces for the reception of an axle, the lowermost of said bearing halves comprising portion which projects outwardly beyond the front wall of the housing, and a box like receptacle toward the inner end of the housing, the outer face of the upper bearing half lying flush with the outer face of the housing and said bearings halves being so shaped that they mutually interlock and hold each other in place even in the absence of the axle with which they are used, an axle adapted to be received within said bearing halves, and a wheel mounted to turn upon said axle, said wheel having a facial recess within which the projecting bearin portion of the lower half is received, the ub of the wheel bearing upon the front face of the housing to prevent outward movement of said wheel, and said hub bearing against the front face of the upper bearing half to prevent of said housing.

' 5. The combination with a housing having a rectangular box like interior, of a pair of the contour of the'outer faces of which substantially conform to and fit within said housing, said bearing halves be ing provided with substantially semi-circular faces for the reception of an axle, the lowermost of said bearing halves comprising said semi-circular bearing portion, and a box like depressed portion outwardly ofsaid bearing portion for the reception of lubricant, a portion of the housing lyinginwerdly of a porhalves abutting each other at their meeting asp tion of the lower bearmg half to prevent movement of the lower bearing half out of said housing, said upper and lower bearing edges to preventmovement of said bearing ha ves toward each other, an axle, a wheel upon said axle having a Portion lying close enough to the end face 0 the upper bearing half to prevent movement of said upper bearing half out of thehousing, said axle bein of uniformdiameter outwardly of said whee v r to permit of its endwise introduction between said bearing halves, and said axle being of a v 15 length to extend beyond the bearin portion j i of the lower bearing half andinto t e lubricant receptacle. v i

; In testlmonywhereof I aflix my si ature. i JOHN RMIL ER. 

